Hide top navigation in blogger

1. Go to Design / Layout
2. Click Edit HTML
3. Tick the "Expand Widget Templates" box
3. Find the following codes

-----------------------------------------------
Blogger Template Style
Name:     Simple
Designer: Josh Peterson
URL:      www.noaesthetic.com
----------------------------------------------- */

/* Variable definitions
   ====================
   

4. Add this codes just before the  "/* Variable definitions"

#navbar-iframe {
   display: none !important;
}

5. It should look like this:

-----------------------------------------------
Blogger Template Style
Name:     Simple
Designer: Josh Peterson
URL:      www.noaesthetic.com
----------------------------------------------- */

#navbar-iframe {
   display: none !important;
}

/* Variable definitions
   ====================